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Merck
CN

260932

IR-140

Dye content 95 %

Synonym(s):

5,5′-Dichloro-11-diphenylamino-3,3′-diethyl-10,12-ethylenethiatricarbocyanine perchlorate

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About This Item

Empirical Formula (Hill Notation):
C39H34Cl3N3O4S2
CAS Number:
53655-17-7
Molecular Weight:
779.19
NACRES:
NA.23
PubChem Substance ID:
24855780
UNSPSC Code:
12352103
EC Number:
258-689-0
MDL number:
MFCD00011957

Key Documents

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Product Name

IR-140, Dye content 95 %

InChI key

UVLDECUUBLLYRG-UHFFFAOYSA-M

InChI

1S/C39H34Cl2N3S2.ClHO4/c1-3-42-33-25-29(40)19-21-35(33)45-37(42)23-17-27-15-16-28(18-24-38-43(4-2)34-26-30(41)20-22-36(34)46-38)39(27)44(31-11-7-5-8-12-31)32-13-9-6-10-14-32;2-1(3,4)5/h5-14,17-26H,3-4,15-16H2,1-2H3;(H,2,3,4,5)/q+1;/p-1

SMILES string

[O-]Cl(=O)(=O)=O.CCN1C(/Sc2ccc(Cl)cc12)=C\C=C3/CCC(\C=C\c4sc5ccc(Cl)cc5[n+]4CC)=C3N(c6ccccc6)c7ccccc7

form

powder

autoignition temp.

1075 °F

composition

Dye content, 95%

mp

250-252 °C (lit.)

λmax

823 nm

Quality Level

200

Related Categories

Application

Suitable as laser dye

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCH5930
BCCF6024
BCCD6342
BCCC8041
BCCB6180

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Ankun Yang et al.
Nature communications, 6, 6939-6939 (2015-04-22)
Plasmon lasers can support ultrasmall mode confinement and ultrafast dynamics with device feature sizes below the diffraction limit. However, most plasmon-based nanolasers rely on solid gain materials (inorganic semiconducting nanowire or organic dye in a solid matrix) that preclude the
Ken-Ichi Yamashita et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 26(16), 3633-3640 (2019-12-28)
Facile redox-induced aromatic-antiaromatic interconversions were accomplished by using β-tetracyano-21,23-dithiaporphyrin (CN4 S2 Por). Introduced cyano groups not only increased the reduction potential of the porphyrin core but also stabilized the antiaromatic isophlorin (CN4 S2 Iph) by π conjugation. The reduction of
Yogita Silori et al.
The journal of physical chemistry. B, 124(31), 6825-6834 (2020-07-10)
Photophysical properties of tricarbocyanine dyes in various solvents have been widely investigated using a variety of spectroscopic tools. However, the presence of several ground-state isomers and interconversion between these isomers on an ultrafast timescale upon photoexcitation render unambiguous assignment of

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